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Finding the Fourth Proportional to 14,840.92, 20,478.90 and 8,873.80

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Solution

The fourth proportional to 14,840.92, 20,478.90 and 8,873.80 is: 12,244.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.92 : 20,478.90 = 8,873.80 : x
  2. Step 2: Convert to fraction form
    14,840.92/20,478.90 = 8,873.80/x
  3. Step 3: Cross multiply
    14,840.92x = 20,478.90 × 8,873.80
  4. Step 4: Simplify right side
    14,840.92x = 181,725,662.82
  5. Step 5: Solve for x
    x = 181,725,662.82/14,840.92
  6. Step 6: Final answer
    x = 12,244.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.